It's like a car alarm with a shock sensor. Move it and it goes off. Attach to your bike I guess and if bike is moved, it chirps. If security code isn't entered in a certain time and lock still detects movement it goes off.
http://www.amazon.com/Bicycle-Anti-theft-Anti-lost-Alarm-Device/dp/B00E3G3RUM/ref=sr_1_81?ie=UTF8&qid=1430000558&sr=8-81&keywords=Bike+lock
Saturday, April 25, 2015
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